CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Balance, beginning of period (in shares) at Dec. 31, 2019	[1]		6,123,432
Balance, beginning of period at Dec. 31, 2019	[1]	$ 34,630	$ 1	$ 62,164	$ (27,535)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		(12,214)			(12,214)
Capital contribution from Partner Bank		1,385		1,385
Share-based compensation expense		468		468
Balance, end of period (in shares) at Dec. 31, 2020			6,123,432
Balance, end of period at Dec. 31, 2020		24,269	$ 1	64,017	(39,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		16,059			16,059
Valuation of private warrants		(30,839)		(30,839)
Recapitalization transaction (in shares)			4,759,911
Recapitalization transaction		16,148		16,148
Issuance of common stock as compensation (in shares)			1,317,035
Issuance of common stock as compensation		2,323		2,323
Share-based compensation expense		811		811
Balance, end of period (in shares) at Mar. 31, 2021			12,200,378
Balance, end of period at Mar. 31, 2021		28,771	$ 1	52,460	(23,690)
Balance, beginning of period (in shares) at Dec. 31, 2020			6,123,432
Balance, beginning of period at Dec. 31, 2020		24,269	$ 1	64,017	(39,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		11,269
Balance, end of period (in shares) at Jun. 30, 2021			12,200,378
Balance, end of period at Jun. 30, 2021		26,370	$ 1	54,849	(28,480)
Balance, beginning of period (in shares) at Dec. 31, 2020			6,123,432
Balance, beginning of period at Dec. 31, 2020		24,269	$ 1	64,017	(39,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		18,393
Balance, end of period (in shares) at Sep. 30, 2021			12,206,378
Balance, end of period at Sep. 30, 2021		35,956	$ 1	57,311	(21,356)
Balance, beginning of period (in shares) at Dec. 31, 2020			6,123,432
Balance, beginning of period at Dec. 31, 2020		24,269	$ 1	64,017	(39,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		17,043			17,043
Valuation of private warrants		(30,839)		(30,839)
Recapitalization transaction (in shares)			4,759,911
Recapitalization transaction		16,148		16,148
Issuance of common stock as compensation (in shares)			1,308,535
Issuance of common stock as compensation		9,518		9,518
Issuance of common stock upon exercise of warrants (in shares)			1,500
Issuance of common stock upon exercise of warrants		17		17
Share-based compensation expense		1,825		1,825
Balance, end of period (in shares) at Dec. 31, 2021			12,193,378
Balance, end of period at Dec. 31, 2021		37,981	$ 1	60,686	(22,706)
Balance, beginning of period (in shares) at Mar. 31, 2021			12,200,378
Balance, beginning of period at Mar. 31, 2021		28,771	$ 1	52,460	(23,690)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		(4,790)			(4,790)
Issuance of common stock as compensation		2,389		2,389
Balance, end of period (in shares) at Jun. 30, 2021			12,200,378
Balance, end of period at Jun. 30, 2021		26,370	$ 1	54,849	(28,480)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		7,124			7,124
Issuance of common stock as compensation		2,462		2,462
Balance, end of period (in shares) at Sep. 30, 2021			12,206,378
Balance, end of period at Sep. 30, 2021		$ 35,956	$ 1	$ 57,311	$ (21,356)

[1] As previously reported and retroactively adjusted in connection with the merger.